2微弧氧化自封孔陶瓷膜層,研究了氧化石墨烯濃度對(duì)微弧氧化陶瓷膜層孔結(jié)構(gòu)和減摩性的影響。研究發(fā)現(xiàn),通過氧化石墨烯改變電解液導(dǎo)電性等參數(shù)影響反應(yīng)過程,從而實(shí)現(xiàn)對(duì)GO/TiO2陶瓷膜層孔結(jié)的調(diào)控。氧化石墨烯濃度為5g/L時(shí)制備出了孔隙率、孔徑和平均摩擦系數(shù)分別為3.6%、2.5μm和0.1的自封孔陶瓷膜層,相較于傳統(tǒng)微弧氧化膜層分別下降了83.2%、78.4%和87.5%。研究認(rèn)為通過控制氧化石墨烯濃度可以實(shí)現(xiàn)對(duì)微弧氧化陶瓷膜層表面孔結(jié)構(gòu)的調(diào)控,為制備具有減摩效應(yīng)的自封孔微弧氧化膜層提供了新思路。"/>

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氧化石墨烯調(diào)控GO/TiO2陶瓷膜層自封孔效應(yīng)研究
作者:
作者單位:

1.長安大學(xué)材料科學(xué)與工程;2.昆士蘭科技大學(xué);3.西北有色金屬研究院

作者簡介:

通訊作者:

中圖分類號(hào):

TG146.2 3; TG 174.4

基金項(xiàng)目:

陜西省陜煤聯(lián)合(2019JLM-47),陜西省自然科學(xué)基金重點(diǎn)項(xiàng)目(2019JZ-27),中央高?；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金(300102319304,300102318101),凝固技術(shù)國家重點(diǎn)實(shí)驗(yàn)室開放課題(SKLSP201750)


Study on the self-sealing pore effect of graphene-oxide on GO/TiO2 coating
Author:
Affiliation:

1.School of materials science and engineering,Chang’an University,Xi’an;2.School of Chemistry,Physics and Mechanical Engineering,Queensland University of Technology QUT,Brisbane QLD ,Australia;3.Northwest Institute for nonferrous metal research,Xi’an

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    摘要:

    自封孔是提高微弧氧化膜層耐磨性和耐蝕性等綜合性能的重要技術(shù)之一。針對(duì)物理封孔因封孔劑穩(wěn)定性和膨脹作用限制膜層服役安全性等問題,本論文利用氧化石墨烯電性調(diào)控微弧氧化陶瓷膜層孔結(jié)構(gòu),制備具有減摩效應(yīng)的GO/TiO2微弧氧化自封孔陶瓷膜層,研究了氧化石墨烯濃度對(duì)微弧氧化陶瓷膜層孔結(jié)構(gòu)和減摩性的影響。研究發(fā)現(xiàn),通過氧化石墨烯改變電解液導(dǎo)電性等參數(shù)影響反應(yīng)過程,從而實(shí)現(xiàn)對(duì)GO/TiO2陶瓷膜層孔結(jié)的調(diào)控。氧化石墨烯濃度為5g/L時(shí)制備出了孔隙率、孔徑和平均摩擦系數(shù)分別為3.6%、2.5μm和0.1的自封孔陶瓷膜層,相較于傳統(tǒng)微弧氧化膜層分別下降了83.2%、78.4%和87.5%。研究認(rèn)為通過控制氧化石墨烯濃度可以實(shí)現(xiàn)對(duì)微弧氧化陶瓷膜層表面孔結(jié)構(gòu)的調(diào)控,為制備具有減摩效應(yīng)的自封孔微弧氧化膜層提供了新思路。

    Abstract:

    Self-sealing pore is one of the important technologies to improve the antifriction and corrosion resistance of micro-arc oxidation coating. In order to solve the problem that the stability and expansion effect of sealing agent of physical sealing pore coating limited the service time. This paper uses the electrical property of graphene oxide to control the pore structure of ceramic coatings and to prepare GO/TiO2 self-sealing pore ceramic coatings with antifriction effect. The effect of graphene oxide concentration on pore structure and antifriction of ceramic coating were discussed. The result show that the conductivity of electrolyte was changed by graphene oxide to affect the reaction process, which contributed to control the pore structure of the GO/TiO2 coating. The self-sealing pore coating with the porosity, pore size and average friction coefficient of 3.6%, 2.5μm and 0.1 was prepared at the graphene oxide concentration of 5g/L, which decreased by 83.2%,78.4% and 87.5% respectively compared with traditional coatings. It is believed that the pore structure of micro-arc oxidation coating can be controlled by the concentration of graphene oxide, which provides a new idea for the preparation of antifriction self-sealing pore coating.

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陳永楠,郭紫薇,楊澤慧,趙秦陽,張龍,徐義庫,郝健民,占海飛,趙永慶.氧化石墨烯調(diào)控GO/TiO2陶瓷膜層自封孔效應(yīng)研究[J].稀有金屬材料與工程,2021,50(10):3621~3626.[Yongnan Chen, Ziwei Guo, Zehui Yang, Qinyang Zhao, Long Zhang, Yiku Xu, Jianmin Hao, Haifei Zhan, Yongqing Zhao. Study on the self-sealing pore effect of graphene-oxide on GO/TiO2 coating[J]. Rare Metal Materials and Engineering,2021,50(10):3621~3626.]
DOI：10.12442/j. issn.1002-185X.20200144

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  • 收稿日期:2020-03-03
  • 最后修改日期:2020-06-05
  • 錄用日期:2020-06-09
  • 在線發(fā)布日期: 2021-10-28
  • 出版日期: 2021-10-25